Former South Korean President Yoon Suk Yeol was sentenced to life in prison for his brief imposition of martial law in a dramatic culmination to the country’s biggest political crisis in decades.
Yoon was ousted from office after a baffling attempt to overcome an opposition-controlled legislature by declaring martial law and sending troops to surround the National Assembly on Dec. 3, 2024, The Associated Press said.
Judge Jee Kui-youn of the Seoul Central District Court said he found Yoon guilty of rebellion for mobilizing military and police forces in an illegal attempt to seize the liberal-led Assembly, arrest politicians and establish unchecked power for a “considerable” time.
Martial law crisis recalled dictatorial past Yoon’s martial law imposition, the first of its kind in more than four decades, harkened back to South Korea’s past military-backed governments when authorities occasionally proclaimed emergency decrees that allowed them to station soldiers, tanks and armored vehicles on streets or at public places such as schools to prevent anti-government demonstrations.
As lawmakers rushed to the National Assembly, Yoon’s martial law command issued a proclamation declaring sweeping powers, including suspending political activities, controlling the media and publications, and allowing arrests without warrants.
The decree lasted about six hours before being lifted after a quorum of lawmakers managed to break through a military blockade and unanimously voted to lift the measure.
Yoon was suspended from office on Dec. 14, 2024, after being impeached by lawmakers and was formally removed by the Constitutional Court in April 2025. He has been under arrest since last July while facing multiple criminal trials, with the rebellion charge carrying the most severe punishment.
Yoon's lawyers reject conviction Yoon Kap-keun, one of the former president’s lawyers, accused Jee of issuing a “predetermined verdict” based solely on prosecutors’ arguments and said the “rule of law” had collapsed. He said he would discuss whether to appeal with his client and the rest of the legal team.
Yoon Suk Yeol told the court the martial law decree was only meant to raise public awareness of how the liberals were paralyzing state affairs, and that he was prepared to respect lawmakers if they voted against the measure.
Prosecutors said it was clear Yoon was attempting to disable the legislature and prevent lawmakers from lifting the measure through voting, actions that exceeded his constitutional authority even under martial law.
In announcing Yoon and Kim’s verdicts, Jee said the decision to send troops to the National Assembly was key to his determination that the imposition of martial law amounted to rebellion.
“This court finds that the purpose of (Yoon’s) actions was to send troops to the National Assembly, block the Assembly building and arrest key figures, including the National Assembly speaker and the leaders of both the ruling and opposition parties, in order to prevent lawmakers from gathering to deliberate or vote,” Jee said. “It’s sufficiently established that he intended to obstruct or paralyze the Assembly’s activities so that it would be unable to properly perform its functions for a considerable period of time.”
Protesters rally outside court
As Yoon arrived in court, hundreds of police officers watched closely as Yoon supporters rallied outside a judicial complex, their cries rising as the prison bus transporting him drove past. Yoon’s critics gathered nearby, demanding the death penalty.
There were no immediate reports of major clashes following the verdict.
A special prosecutor had demanded the death penalty for Yoon Suk Yeol, saying his actions posed a threat to the country’s democracy and deserved the most serious punishment available, but most analysts expected a life sentence since the poorly-planned power grab did not result in casualties.
South Korea has not executed a death row inmate since 1997, in what is widely seen as a de facto moratorium on capital punishment amid calls for its abolition.
Other officials sentenced for enforcing martial law
The court also convicted and sentenced several former military and police officials involved in enforcing Yoon’s martial law decree, including ex-Defense Minister Kim Yong Hyun, who received a 30-year jail term for his central role in planning the measure and mobilizing the military.
Last month, Yoon was sentenced to five years in prison for resisting arrest, fabricating the martial law proclamation and sidestepping a legally mandated full Cabinet meeting before declaring the measure.
The Seoul Central Court has also convicted two members of Yoon’s Cabinet in other cases. That includes Prime Minister Han Duck-soo, who received a 23-year prison sentence for attempting to legitimize the decree by forcing it through a Cabinet Council meeting, falsifying records and lying under oath. Han has appealed the verdict.
Yoon is the first former South Korean president to receive a life sentence since former military dictator Chun Doo-hwan, who was sentenced to death in 1996 for his 1979 coup, a bloody 1980 crackdown on pro-democracy protesters in Gwangju that left more than 200 people dead or missing, and corruption.
The Supreme Court later reduced his sentence to life imprisonment, and he was released in late 1997 under a special presidential pardon. He died in 2021.
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